Title :
A Predistortion Linearizer with Controlling Individual Order IMD Signals
Author :
Jeon, Ki-Kyung ; Kim, Ell-Kou ; Kim, Young ; Hwang, Moon-Soo ; Kim, Byung-Chul
Author_Institution :
Sch. of Electron. Eng., Kumoh Nat. Inst. of Technol., Gumi
Abstract :
In this paper, a new predistortion linearizer with controlling individual order intermodulation distortion (IMD) signals is proposed. This linearizer is achieved independent control of third- and fifth-order intermodulation products using amplitude modulation with even harmonic signals. A vector modulator, modulate fundamental signal with even harmonic components generated by harmonic generator circuits, generates the predistortion third- and fifth-order intermodulation signals and controls amplitude and phase of them with each other modulation factors. As a result, this linearizer is suppressed third- and fifth-order IMD signals of power amplifier effectively
Keywords :
amplitude modulation; harmonic generation; intermodulation distortion; linearisation techniques; power amplifiers; amplitude modulation; even harmonic signals; harmonic generator circuits; intermodulation distortion; power amplifier; predistortion linearizer; vector modulator; Amplitude modulation; Chirp modulation; Circuits; Intermodulation distortion; Linearity; Phase modulation; Power amplifiers; Power generation; Predistortion; Signal generators; Linearizer; even harmonic signal; individual order; intermodulation distortion; power amplifier;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281194
